Boston, Massachusetts Big Dig
Boston's Central Artery/Tunnel, surely the
world's largest urban infrastructure project, would have been a challenge
anywhere. The Boston location guaranteed that deep soft clay
throughout its path would add some unique geotechnical complications, one
being that the entire new infrastructure itself would need deep support.
Founded in Boston in 1913 as a deep
foundation specialist, long before infrastructure became a buzzword, New
England Foundation Co. was well positioned to serve. But it would face
unprecedented national and international competition, as the world community
of under-ground specialty contractors was attracted to Boston's mega
Dwarfed by the giant 250ft. diameter x 80 ft. deep
cofferdam, two NEFCO rigs install 5 ft.diameter caissons, socketed up to 30
ft. in rock, for CA/T Vent Bldg. #6.
NEFCO Rig #1
NEFCO Rig #2